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A012872
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Expansion of e.g.f.: arcsin(sech(x)*log(x+1))=x-1/2!*x^2-6/4!*x^4+43/5!*x^5-195/6!*x^6...
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0
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0, 1, -1, 0, -6, 43, -195, 1568, -15204, 151373, -1798245, 23630992, -338936730, 5409752775, -93357461015, 1736114575232, -34849328368680, 747209331349305, -17053712316379593, 413430901134512288
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OFFSET
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1,5
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[ArcSin[Sech[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jul 20 2020 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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EXTENSIONS
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STATUS
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approved
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